1252700217855 has 32 divisors (see below), whose sum is σ = 2230020126720. Its totient is φ = 667207527840.

The previous prime is 1252700217833. The next prime is 1252700217889. The reversal of 1252700217855 is 5587120072521.

1252700217855 is a `hidden beast` number, since 1 + 2 + 527 + 0 + 0 + 2 + 1 + 78 + 55 = 666.

It is not a de Polignac number, because 1252700217855 - 2¹² = 1252700213759 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1252700217855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6144151 + ... + 6344760.

It is an arithmetic number, because the mean of its divisors is an integer number (69688128960).

Almost surely, 2^{1252700217855} is an apocalyptic number.

1252700217855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1252700217855 is a deficient number, since it is larger than the sum of its proper divisors (977319908865).

1252700217855 is a wasteful number, since it uses less digits than its factorization.

1252700217855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12489668 (or 12489662 counting only the distinct ones).

The product of its (nonzero) digits is 392000, while the sum is 45.

The spelling of 1252700217855 in words is "one trillion, two hundred fifty-two billion, seven hundred million, two hundred seventeen thousand, eight hundred fifty-five".